[flang][test] fix tests broken by rename

Author: everythingfunctional

flang/test/Driver/driver-version.f90

@@ -9,7 +9,7 @@
 ! VERSION-NEXT: Thread model:
 ! VERSION-NEXT: InstalledDir:
 
-! ERROR: flang: error: unknown argument '--versions'; did you mean '--version'?
+! ERROR: flang{{.*}}: error: unknown argument '--versions'; did you mean '--version'?
 
 ! VERSION-FC1: LLVM version
 

flang/test/Driver/lto-flags.f90

@@ -30,7 +30,7 @@
 ! FULL-LTO: "-fc1"
 ! FULL-LTO-SAME: "-flto=full"
 
-! THIN-LTO-ALL: flang: warning: the option '-flto=thin' is a work in progress
+! THIN-LTO-ALL: flang{{.*}}: warning: the option '-flto=thin' is a work in progress
 ! THIN-LTO-ALL: "-fc1"
 ! THIN-LTO-ALL-SAME: "-flto=thin"
 ! THIN-LTO-LINKER-PLUGIN: "-plugin-opt=thinlto"

flang/test/Driver/missing-input.f90

@@ -17,10 +17,10 @@
 ! RUN: not %flang_fc1 %t.f90 2>&1  | FileCheck %s --check-prefix=FLANG-FC1-NONEXISTENT-FILE
 ! RUN: not %flang_fc1 %S 2>&1  | FileCheck %s --check-prefix=FLANG-FC1-DIR
 
-! FLANG-NO-FILE: flang: error: no input files
+! FLANG-NO-FILE: flang{{.*}}: error: no input files
 
-! FLANG-NONEXISTENT-FILE: flang: error: no such file or directory: {{.*}}
-! FLANG-NONEXISTENT-FILE: flang: error: no input files
+! FLANG-NONEXISTENT-FILE: flang{{.*}}: error: no such file or directory: {{.*}}
+! FLANG-NONEXISTENT-FILE: flang{{.*}}: error: no input files
 
 ! FLANG-FC1-NONEXISTENT-FILE: error: {{.*}} does not exist
 ! FLANG-FC1-DIR: error: {{.*}} is not a regular file

flang/test/Driver/multiple-input-files.f90

@@ -39,7 +39,7 @@
 ! FLANG-NEXT:end program hello
 
 ! TEST 2: `-o` does not when multiple input files are present
-! ERROR: flang: error: cannot specify -o when generating multiple output files
+! ERROR: flang{{.*}}: error: cannot specify -o when generating multiple output files
 
 ! TEST 3: The output file _was not_ specified - `flang_fc1` will process all
 ! input files and generate one output file for every input file.