Gardening: Migrate test suite to GH issues (file names): multifile

Author: AnthonyLatsis

test/multifile/Inputs/sr-285-other.swift renamed to test/multifile/Inputs/issue-42907-other.swift

@@ -1,4 +1,4 @@
-// RUN: %target-swift-frontend -typecheck -primary-file %s %S/Inputs/sr10933a.swift %S/Inputs/sr10933b.swift
+// RUN: %target-swift-frontend -typecheck -primary-file %s %S/Inputs/issue-53324a.swift %S/Inputs/issue-53324b.swift
 
 // https://github.com/apple/swift/issues/53324
 // Crash involving multiple files

test/multifile/Inputs/sr10933a.swift renamed to test/multifile/Inputs/issue-53324a.swift

@@ -1,4 +1,4 @@
-// RUN: %target-swift-frontend -typecheck -primary-file %s %S/Inputs/sr11458.swift
+// RUN: %target-swift-frontend -typecheck -primary-file %s %S/Inputs/issue-53859.swift
 
 // https://github.com/apple/swift/issues/53859
 // Crash involving subscript in other file

test/multifile/Inputs/sr10933b.swift renamed to test/multifile/Inputs/issue-53324b.swift

@@ -1,6 +1,6 @@
 // RUN: %empty-directory(%t)
 // RUN: cp %s %t/main.swift
-// RUN: %target-build-swift -o %t/main %t/main.swift %S/Inputs/sr12429.swift
+// RUN: %target-build-swift -o %t/main %t/main.swift %S/Inputs/issue-54868.swift
 // RUN: %target-codesign %t/main
 // RUN: %target-run %t/main