test: repair the prespecialized-metadata tests on ASi

Introduce `llvm_src_root` and `llvm_obj_root` to mirror `swift_src_root`
and `swift_obj_root`.  This allows us to repair the paths used in the
tests without having to hardcode the build layout into the tests.

Author: compnerd

test/IRGen/prespecialized-metadata/class-class-flags-run.swift

@@ -1,5 +1,5 @@
 // RUN: %empty-directory(%t)
-// RUN: %clang -c -v %target-cc-options -g -O0 -isysroot %sdk %S/Inputs/isPrespecialized.cpp -o %t/isPrespecialized.o -I %clang-include-dir -I %swift_src_root/include/ -I %swift_src_root/../llvm-project/llvm/include -I %clang-include-dir/../../llvm-macosx-x86_64/include -L %clang-include-dir/../lib/swift/macosx
+// RUN: %clang -c -v %target-cc-options -g -O0 -isysroot %sdk %S/Inputs/isPrespecialized.cpp -o %t/isPrespecialized.o -I %clang-include-dir -I %swift_src_root/include/ -I %llvm_src_root/include -I %llvm_obj_root/include -L %clang-include-dir/../lib/swift/macosx
 
 // RUN: %target-build-swift -v %mcp_opt %s %t/isPrespecialized.o -import-objc-header %S/Inputs/isPrespecialized.h -Xfrontend -prespecialize-generic-metadata -target %module-target-future -lc++ -L %clang-include-dir/../lib/swift/macosx -sdk %sdk -o %t/main
 // RUN: %target-codesign %t/main

test/IRGen/prespecialized-metadata/enum-extradata-run.swift

@@ -1,5 +1,5 @@
 // RUN: %empty-directory(%t)
-// RUN: %clang -c -v %target-cc-options -g -O0 -isysroot %sdk %S/Inputs/extraDataFields.cpp -o %t/extraDataFields.o -I %clang-include-dir -I %swift_src_root/include/ -I %swift_src_root/../llvm-project/llvm/include -I %clang-include-dir/../../llvm-macosx-x86_64/include -L %clang-include-dir/../lib/swift/macosx
+// RUN: %clang -c -v %target-cc-options -g -O0 -isysroot %sdk %S/Inputs/extraDataFields.cpp -o %t/extraDataFields.o -I %clang-include-dir -I %swift_src_root/include/ -I %llvm_src_root/include -I %llvm_obj_root/include -L %clang-include-dir/../lib/swift/macosx
 
 // RUN: %target-build-swift -c %S/Inputs/enum-extra-data-fields.swift -emit-library -emit-module -enable-library-evolution -module-name ExtraDataFieldsNoTrailingFlags -target %module-target-future -Xfrontend -disable-generic-metadata-prespecialization -emit-module-path %t/ExtraDataFieldsNoTrailingFlags.swiftmodule -o %t/%target-library-name(ExtraDataFieldsNoTrailingFlags)
 // RUN: %target-build-swift -c %S/Inputs/enum-extra-data-fields.swift -emit-library -emit-module -enable-library-evolution -module-name ExtraDataFieldsTrailingFlags -target %module-target-future -Xfrontend -prespecialize-generic-metadata -emit-module-path %t/ExtraDataFieldsTrailingFlags.swiftmodule -o %t/%target-library-name(ExtraDataFieldsTrailingFlags)

test/IRGen/prespecialized-metadata/enum-trailing-flags-run.swift

@@ -1,5 +1,5 @@
 // RUN: %empty-directory(%t)
-// RUN: %clang -c -v %target-cc-options -g -O0 -isysroot %sdk %S/Inputs/isPrespecialized.cpp -o %t/isPrespecialized.o -I %clang-include-dir -I %swift_src_root/include/ -I %swift_src_root/../llvm-project/llvm/include -I %clang-include-dir/../../llvm-macosx-x86_64/include -L %clang-include-dir/../lib/swift/macosx
+// RUN: %clang -c -v %target-cc-options -g -O0 -isysroot %sdk %S/Inputs/isPrespecialized.cpp -o %t/isPrespecialized.o -I %clang-include-dir -I %swift_src_root/include/ -I %llvm_src_root/include -I %llvm_obj_root/include -L %clang-include-dir/../lib/swift/macosx
 
 // RUN: %target-build-swift -v %mcp_opt %s %t/isPrespecialized.o -import-objc-header %S/Inputs/isPrespecialized.h -Xfrontend -prespecialize-generic-metadata -target %module-target-future -lc++ -L %clang-include-dir/../lib/swift/macosx -sdk %sdk -o %t/main
 // RUN: %target-codesign %t/main

test/IRGen/prespecialized-metadata/struct-extradata-run.swift

@@ -1,5 +1,5 @@
 // RUN: %empty-directory(%t)
-// RUN: %clang -c -v %target-cc-options -g -O0 -isysroot %sdk %S/Inputs/extraDataFields.cpp -o %t/extraDataFields.o -I %clang-include-dir -I %swift_src_root/include/ -I %swift_src_root/../llvm-project/llvm/include -I %clang-include-dir/../../llvm-macosx-x86_64/include -L %clang-include-dir/../lib/swift/macosx
+// RUN: %clang -c -v %target-cc-options -g -O0 -isysroot %sdk %S/Inputs/extraDataFields.cpp -o %t/extraDataFields.o -I %clang-include-dir -I %swift_src_root/include/ -I %llvm_src_root/include -I %llvm_obj_root/include -L %clang-include-dir/../lib/swift/macosx
 
 // RUN: %target-build-swift -c %S/Inputs/struct-extra-data-fields.swift -emit-library -emit-module -module-name ExtraDataFieldsNoTrailingFlags -target %module-target-future -Xfrontend -disable-generic-metadata-prespecialization -emit-module-path %t/ExtraDataFieldsNoTrailingFlags.swiftmodule -o %t/%target-library-name(ExtraDataFieldsNoTrailingFlags)
 // RUN: %target-build-swift -c %S/Inputs/struct-extra-data-fields.swift -emit-library -emit-module -module-name ExtraDataFieldsTrailingFlags -target %module-target-future -Xfrontend -prespecialize-generic-metadata -emit-module-path %t/ExtraDataFieldsTrailingFlags.swiftmodule -o %t/%target-library-name(ExtraDataFieldsTrailingFlags)

test/IRGen/prespecialized-metadata/struct-multi-conformance.swift

@@ -5,7 +5,7 @@
 // RUN: %target-build-swift -c %s -DCONFORMANCE_2 -emit-library -emit-module -module-name Conformance2 -target %module-target-future -Xfrontend -prespecialize-generic-metadata -emit-module-path %t/Conformance2.swiftmodule -o %t/%target-library-name(Conformance2) -lBase -I %t -L %t
 // RUN: %target-build-swift -c %s -DGENERIC -emit-library -emit-module -module-name Generic -target %module-target-future -Xfrontend -prespecialize-generic-metadata -emit-module-path %t/Generic.swiftmodule -o %t/%target-library-name(Generic) -lBase -lConformance1 -I %t -L %t
 // RUN: %target-build-swift -c %s -DERASE -emit-library -emit-module -module-name Erase -target %module-target-future -Xfrontend -prespecialize-generic-metadata -emit-module-path %t/Erase.swiftmodule -o %t/%target-library-name(Erase) -lBase -lConformance2 -I %t -L %t
-// RUN: %clang -c -v %target-cc-options -g -O0 -isysroot %sdk %S/Inputs/isPrespecialized.cpp -o %t/isPrespecialized.o -I %clang-include-dir -I %swift_src_root/include/ -I %swift_src_root/../llvm-project/llvm/include -I %clang-include-dir/../../llvm-macosx-x86_64/include -L %clang-include-dir/../lib/swift/macosx
+// RUN: %clang -c -v %target-cc-options -g -O0 -isysroot %sdk %S/Inputs/isPrespecialized.cpp -o %t/isPrespecialized.o -I %clang-include-dir -I %swift_src_root/include/ -I %llvm_src_root/include -I %llvm_obj_root/include -L %clang-include-dir/../lib/swift/macosx
 // RUN: %target-build-swift %s %S/Inputs/main.swift %S/Inputs/consume-logging-metadata-value.swift %t/isPrespecialized.o -import-objc-header %S/Inputs/isPrespecialized.h -DMAIN -target %module-target-future -Xfrontend -prespecialize-generic-metadata -lBase -lConformance1 -lConformance2 -lGeneric -lErase -lc++ -I %t -L %t -L %clang-include-dir/../lib/swift/macosx -o %t/main
 
 // RUN: %target-codesign %t/main

test/IRGen/prespecialized-metadata/struct-outmodule-run.swift

@@ -1,5 +1,5 @@
 // RUN: %empty-directory(%t)
-// RUN: %clang -c -v %target-cc-options -g -O0 -isysroot %sdk %S/Inputs/isPrespecialized.cpp -o %t/isPrespecialized.o -I %clang-include-dir -I %swift_src_root/include/ -I %swift_src_root/../llvm-project/llvm/include -I %clang-include-dir/../../llvm-macosx-x86_64/include -L %clang-include-dir/../lib/swift/macosx
+// RUN: %clang -c -v %target-cc-options -g -O0 -isysroot %sdk %S/Inputs/isPrespecialized.cpp -o %t/isPrespecialized.o -I %clang-include-dir -I %swift_src_root/include/ -I %llvm_src_root/include -I %llvm_obj_root/include -L %clang-include-dir/../lib/swift/macosx
 
 // RUN: %target-build-swift %S/Inputs/struct-public-nonfrozen-1argument.swift -emit-module -emit-library -module-name Module -Xfrontend -prespecialize-generic-metadata -target %module-target-future -emit-module-path %t/Module.swiftmodule -o %t/%target-library-name(Module)
 

test/IRGen/prespecialized-metadata/struct-trailing-flags-run.swift

@@ -1,5 +1,5 @@
 // RUN: %empty-directory(%t)
-// RUN: %clang -c -v %target-cc-options -g -O0 -isysroot %sdk %S/Inputs/isPrespecialized.cpp -o %t/isPrespecialized.o -I %clang-include-dir -I %swift_src_root/include/ -I %swift_src_root/../llvm-project/llvm/include -I %clang-include-dir/../../llvm-macosx-x86_64/include -L %clang-include-dir/../lib/swift/macosx
+// RUN: %clang -c -v %target-cc-options -g -O0 -isysroot %sdk %S/Inputs/isPrespecialized.cpp -o %t/isPrespecialized.o -I %clang-include-dir -I %swift_src_root/include/ -I %llvm_src_root/include -I %llvm_obj_root/include -L %clang-include-dir/../lib/swift/macosx
 
 // RUN: %target-build-swift -v %mcp_opt %s %t/isPrespecialized.o -import-objc-header %S/Inputs/isPrespecialized.h -Xfrontend -prespecialize-generic-metadata -target %module-target-future -lc++ -L %clang-include-dir/../lib/swift/macosx -sdk %sdk -o %t/main
 // RUN: %target-codesign %t/main

test/lit.cfg

@@ -386,6 +386,8 @@ lit_config.note("Using code completion cache: " + completion_cache_path)
 
 config.substitutions.append( ('%validate-incrparse', '%{python} %utils/incrparse/validate_parse.py --temp-dir %t --swift-syntax-test %swift-syntax-test') )
 config.substitutions.append( ('%incr-transfer-tree', '%{python} %utils/incrparse/incr_transfer_tree.py --temp-dir %t --swift-syntax-test %swift-syntax-test') )
+config.substitutions.append( ('%llvm_obj_root', config.llvm_obj_root) )
+config.substitutions.append( ('%llvm_src_root', config.llvm_src_root) )
 config.substitutions.append( ('%swift_obj_root', config.swift_obj_root) )
 config.substitutions.append( ('%swift_src_root', config.swift_src_root) )
 config.substitutions.append( ('%{python}', pipes.quote(sys.executable)) )