[gn] Add gn support to gcmole

src/v8.gyp

Index: src/v8.gyp
diff --git a/src/v8.gyp b/src/v8.gyp
index 881de34ff43e8df121d6523aa520f636cd4a88d3..6ee94477a8ae08ccbeaa6c6f9c8f39f4328086b5 100644
--- a/src/v8.gyp
+++ b/src/v8.gyp
@@ -582,14 +582,14 @@
         'compiler/effect-control-linearizer.h',
         'compiler/escape-analysis.cc',
         'compiler/escape-analysis.h',
-        "compiler/escape-analysis-reducer.cc",
-        "compiler/escape-analysis-reducer.h",
+        'compiler/escape-analysis-reducer.cc',
+        'compiler/escape-analysis-reducer.h',
         'compiler/frame.cc',
         'compiler/frame.h',
         'compiler/frame-elider.cc',
         'compiler/frame-elider.h',
-        "compiler/frame-states.cc",
-        "compiler/frame-states.h",
+        'compiler/frame-states.cc',
+        'compiler/frame-states.h',
         'compiler/gap-resolver.cc',
         'compiler/gap-resolver.h',
         'compiler/graph-reducer.cc',
@@ -1557,9 +1557,15 @@
             'regexp/mips64/regexp-macro-assembler-mips64.h',
           ],
         }],
-        ['v8_target_arch=="x64" or v8_target_arch=="x32"', {
+        ['v8_target_arch=="x64"', {
           'sources': [  ### gcmole(arch:x64) ###
             'builtins/x64/builtins-x64.cc',
+            'compiler/x64/code-generator-x64.cc',
+            'compiler/x64/instruction-codes-x64.h',
+            'compiler/x64/instruction-scheduler-x64.cc',
+            'compiler/x64/instruction-selector-x64.cc',
+            'compiler/x64/unwinding-info-writer-x64.h',
+            'compiler/x64/unwinding-info-writer-x64.cc',
             'crankshaft/x64/lithium-codegen-x64.cc',
             'crankshaft/x64/lithium-codegen-x64.h',
             'crankshaft/x64/lithium-gap-resolver-x64.cc',
@@ -1576,6 +1582,7 @@
             'x64/cpu-x64.cc',
             'x64/deoptimizer-x64.cc',
             'x64/disasm-x64.cc',
+            'x64/eh-frame-x64.cc',
             'x64/frames-x64.cc',
             'x64/frames-x64.h',
             'x64/interface-descriptors-x64.cc',
@@ -1596,17 +1603,6 @@
             'third_party/valgrind/valgrind.h',
           ],
         }],
-        ['v8_target_arch=="x64"', {
-          'sources': [
-            'compiler/x64/code-generator-x64.cc',
-            'compiler/x64/instruction-codes-x64.h',
-            'compiler/x64/instruction-scheduler-x64.cc',
-            'compiler/x64/instruction-selector-x64.cc',
-            'compiler/x64/unwinding-info-writer-x64.h',
-            'compiler/x64/unwinding-info-writer-x64.cc',
-            'x64/eh-frame-x64.cc',
-          ],
-        }],
         ['v8_target_arch=="ppc" or v8_target_arch=="ppc64"', {
           'sources': [  ### gcmole(arch:ppc) ###
             'builtins/ppc/builtins-ppc.cc',