Use requireExtensions() to check extension and turn on more tests.

Use requireExtensions() to check GL_GOOGLE_cpp_style_line_directive
is turned on. Add register more tests for running.

Test/baseResults/preprocessor.cpp_style___FILE__.vert.out

@@ -1,26 +1,37 @@
 #extension GL_GOOGLE_cpp_style_line_directive : enable
 
 0
-#line 150 a.h
+
+#line 150 "a.h"
  "a.h"
+
 #line 24
  "a.h"
+
 #line 42
  "a.h"
-#line 30 b.cc
+
+#line 30 "b.cc"
  "b.cc"
+
 #line 10 3
  3
+
 #line 48
  3
+
 #line 4
  3
+
 #line 55 100
  100
-#line 1000 c
+
+#line 1000 "c"
  "c"
+
 #line 42 1
  1
-#line 42 this-is-a-quite-long-name-maybe-i-should-shorten-it
+
+#line 42 "this-is-a-quite-long-name-maybe-i-should-shorten-it"
  "this-is-a-quite-long-name-maybe-i-should-shorten-it"
 

Test/test-preprocessor-list

@@ -1,4 +1,5 @@
 preprocessor.cpp_style_line_directive.vert
+preprocessor.cpp_style___FILE__.vert
 preprocessor.edge_cases.vert
 preprocessor.errors.vert
 preprocessor.extensions.vert