[turbofan] Refactor the InstructionSelector tests.

test/cctest/cctest.gyp

Index: test/cctest/cctest.gyp
diff --git a/test/cctest/cctest.gyp b/test/cctest/cctest.gyp
index 5e0005d317033d16a2211271b40b82ca87e4dd5c..559dd6bf271d994cd66850a489ee43f93b03b7d1 100644
--- a/test/cctest/cctest.gyp
+++ b/test/cctest/cctest.gyp
@@ -57,7 +57,6 @@
         'compiler/test-codegen-deopt.cc',
         'compiler/test-gap-resolver.cc',
         'compiler/test-graph-reducer.cc',
-        'compiler/test-instruction-selector.cc',
         'compiler/test-instruction.cc',
         'compiler/test-js-context-specialization.cc',
         'compiler/test-js-constant-cache.cc',
@@ -167,7 +166,6 @@
       'conditions': [
         ['v8_target_arch=="ia32"', {
           'sources': [  ### gcmole(arch:ia32) ###
-            'compiler/test-instruction-selector-ia32.cc',
             'test-assembler-ia32.cc',
             'test-code-stubs.cc',
             'test-code-stubs-ia32.cc',
@@ -188,7 +186,6 @@
         }],
         ['v8_target_arch=="arm"', {
           'sources': [  ### gcmole(arch:arm) ###
-            'compiler/test-instruction-selector-arm.cc',
             'test-assembler-arm.cc',
             'test-code-stubs.cc',
             'test-code-stubs-arm.cc',
@@ -198,7 +195,6 @@
         }],
         ['v8_target_arch=="arm64"', {
           'sources': [  ### gcmole(arch:arm64) ###
-            'compiler/test-instruction-selector-arm64.cc',
             'test-utils-arm64.cc',
             'test-assembler-arm64.cc',
             'test-code-stubs.cc',