Tests/RunCMake: Match 'Tried extensions' output more robustly

Tests/RunCMake/CMP0115/CMP0115-OLD-stderr.txt

@@ -3,11 +3,9 @@
 
     noexist
 
-  Tried extensions [^
-]*
-  [^
-]*
-Call Stack \(most recent call first\):
+  Tried extensions ([^
+]+
+)+Call Stack \(most recent call first\):
   CMP0115-OLD\.cmake:[0-9]+ \(include\)
   CMakeLists\.txt:[0-9]+ \(include\)
 

Tests/RunCMake/CMP0115/CMP0115-WARN-stderr.txt

@@ -17,11 +17,9 @@ CMake Error at CMP0115\.cmake:[0-9]+ \(add_executable\):
 
     noexist
 
-  Tried extensions [^
-]*
-  [^
-]*
-Call Stack \(most recent call first\):
+  Tried extensions ([^
+]+
+)+Call Stack \(most recent call first\):
   CMP0115-WARN\.cmake:[0-9]+ \(include\)
   CMakeLists\.txt:[0-9]+ \(include\)
 

Tests/RunCMake/File_Generate/SourceProperty-CMP0070-NEW-stderr.txt

@@ -3,9 +3,9 @@
 
 .*\/relative-output-NEW\.c
 
-  Tried extensions \.c \.C.*
-Call Stack \(most recent call first\):
+  Tried extensions ([^
+]+
+)+Call Stack \(most recent call first\):
   CMakeLists.txt:[0-9]+ \(include\)
-
-
++
 CMake Generate step failed.  Build files cannot be regenerated correctly.$

Tests/RunCMake/File_Generate/SourceProperty-CMP0070-NEW.cmake

@@ -1,5 +1,5 @@
 enable_language(C)
-add_library(foo)
+add_library(foo empty.c)
 
 cmake_policy(SET CMP0070 NEW)
 file(GENERATE OUTPUT relative-output-NEW.c CONTENT "")

Tests/RunCMake/File_Generate/SourceProperty-CMP0070-OLD-stderr.txt

@@ -8,16 +8,15 @@
   behavior and not rely on setting a policy to OLD.
 Call Stack \(most recent call first\):
   CMakeLists.txt:[0-9]+ \(include\)
-
-
++
 CMake Error at SourceProperty-CMP0070-OLD.cmake:[0-9]+ \(target_sources\):
   Cannot find source file:
 
 .*\/relative-output-OLD\.c
 
-  Tried extensions \.c \.C.*
-Call Stack \(most recent call first\):
+  Tried extensions ([^
+]+
+)+Call Stack \(most recent call first\):
   CMakeLists.txt:[0-9]+ \(include\)
-
-
++
 CMake Generate step failed.  Build files cannot be regenerated correctly.$

Tests/RunCMake/File_Generate/SourceProperty-CMP0070-OLD.cmake

@@ -1,5 +1,5 @@
 enable_language(C)
-add_library(foo)
+add_library(foo empty.c)
 
 cmake_policy(SET CMP0070 OLD)
 file(GENERATE OUTPUT relative-output-OLD.c CONTENT "")

Tests/RunCMake/InterfaceLibrary/global-interface-stderr.txt

@@ -3,7 +3,7 @@ CMake Error at global-interface.cmake:2 \(add_library\):
 
     GLOBAL
 
-  Tried extensions \.c \.C .*
-.*
-Call Stack \(most recent call first\):
+  Tried extensions ([^
+]+
+)+Call Stack \(most recent call first\):
   CMakeLists.txt:3 \(include\)

Tests/RunCMake/ObjectLibrary/MissingSource-stderr.txt

@@ -3,7 +3,7 @@ CMake Error at MissingSource.cmake:1 \(add_library\):
 
     missing.c
 
-  Tried extensions \.c \.C .*
-.*
-Call Stack \(most recent call first\):
+  Tried extensions ([^
+]+
+)+Call Stack \(most recent call first\):
   CMakeLists.txt:3 \(include\)

Tests/RunCMake/target_sources/FileSetDirect-stderr.txt

@@ -3,9 +3,9 @@ CMake Error at FileSetDirect.cmake:3 \(add_library\):
 
     FILE_SET
 
-  Tried extensions .c .C .c\+\+ .cc .cpp .cxx .cu .mpp .m .M .mm .ixx .cppm .h
-  .hh .h\+\+ .hm .hpp .hxx .in .txx .f .F .for .f77 .f90 .f95 .f03 .hip .ispc
-
+  Tried extensions ([^
+]+
+)+
   Hint: the FILE_SET keyword may only appear after a visibility specifier or
   another FILE_SET within the target_sources\(\) command.
 Call Stack \(most recent call first\):

Tests/RunCMake/target_sources/FileSetWrongSyntax-stderr.txt

@@ -3,9 +3,9 @@ CMake Error at FileSetWrongSyntax.cmake:4 \(target_sources\):
 
     FILE_SET
 
-  Tried extensions .c .C .c\+\+ .cc .cpp .cxx .cu .mpp .m .M .mm .ixx .cppm .h
-  .hh .h\+\+ .hm .hpp .hxx .in .txx .f .F .for .f77 .f90 .f95 .f03 .hip .ispc
-
+  Tried extensions ([^
+]+
+)+
   Hint: the FILE_SET keyword may only appear after a visibility specifier or
   another FILE_SET within the target_sources\(\) command.
 Call Stack \(most recent call first\):