Move IC code into a subdir and move ic-compilation related code from stub-cache into ic-compiler

BUILD.gn

Index: BUILD.gn
diff --git a/BUILD.gn b/BUILD.gn
index 8926fb3a89ed01bb1cccdcc79a6f2d90617e6a4f..1b801234de89210ee08283245b9068f1e1f9d0c2 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -712,9 +712,11 @@ source_set("v8_base") {
     "src/i18n.h",
     "src/icu_util.cc",
     "src/icu_util.h",
-    "src/ic-inl.h",
-    "src/ic.cc",
-    "src/ic.h",
+    "src/ic/ic-inl.h",
+    "src/ic/ic.cc",
+    "src/ic/ic.h",
+    "src/ic/stub-cache.cc",
+    "src/ic/stub-cache.h",
     "src/interface.cc",
     "src/interface.h",
     "src/interpreter-irregexp.cc",
@@ -817,8 +819,6 @@ source_set("v8_base") {
     "src/string-stream.h",
     "src/strtod.cc",
     "src/strtod.h",
-    "src/stub-cache.cc",
-    "src/stub-cache.h",
     "src/token.cc",
     "src/token.h",
     "src/transitions-inl.h",
@@ -876,7 +876,6 @@ source_set("v8_base") {
       "src/ia32/frames-ia32.cc",
       "src/ia32/frames-ia32.h",
       "src/ia32/full-codegen-ia32.cc",
-      "src/ia32/ic-ia32.cc",
       "src/ia32/lithium-codegen-ia32.cc",
       "src/ia32/lithium-codegen-ia32.h",
       "src/ia32/lithium-gap-resolver-ia32.cc",
@@ -887,11 +886,13 @@ source_set("v8_base") {
       "src/ia32/macro-assembler-ia32.h",
       "src/ia32/regexp-macro-assembler-ia32.cc",
       "src/ia32/regexp-macro-assembler-ia32.h",
-      "src/ia32/stub-cache-ia32.cc",
       "src/compiler/ia32/code-generator-ia32.cc",
       "src/compiler/ia32/instruction-codes-ia32.h",
       "src/compiler/ia32/instruction-selector-ia32.cc",
       "src/compiler/ia32/linkage-ia32.cc",
+      "src/ic/ia32/ic-ia32.cc",
+      "src/ic/ia32/handler-ia32.cc",
+      "src/ic/ia32/stub-cache-ia32.cc",
     ]
   } else if (v8_target_arch == "x64") {
     sources += [
@@ -910,7 +911,6 @@ source_set("v8_base") {
       "src/x64/frames-x64.cc",
       "src/x64/frames-x64.h",
       "src/x64/full-codegen-x64.cc",
-      "src/x64/ic-x64.cc",
       "src/x64/lithium-codegen-x64.cc",
       "src/x64/lithium-codegen-x64.h",
       "src/x64/lithium-gap-resolver-x64.cc",
@@ -921,11 +921,13 @@ source_set("v8_base") {
       "src/x64/macro-assembler-x64.h",
       "src/x64/regexp-macro-assembler-x64.cc",
       "src/x64/regexp-macro-assembler-x64.h",
-      "src/x64/stub-cache-x64.cc",
       "src/compiler/x64/code-generator-x64.cc",
       "src/compiler/x64/instruction-codes-x64.h",
       "src/compiler/x64/instruction-selector-x64.cc",
       "src/compiler/x64/linkage-x64.cc",
+      "src/ic/x64/ic-x64.cc",
+      "src/ic/x64/ic-compiler-x64.cc",
+      "src/ic/x64/stub-cache-x64.cc",
     ]
   } else if (v8_target_arch == "arm") {
     sources += [
@@ -946,7 +948,6 @@ source_set("v8_base") {
       "src/arm/frames-arm.cc",
       "src/arm/frames-arm.h",
       "src/arm/full-codegen-arm.cc",
-      "src/arm/ic-arm.cc",
       "src/arm/lithium-arm.cc",
       "src/arm/lithium-arm.h",
       "src/arm/lithium-codegen-arm.cc",
@@ -958,11 +959,13 @@ source_set("v8_base") {
       "src/arm/regexp-macro-assembler-arm.cc",
       "src/arm/regexp-macro-assembler-arm.h",
       "src/arm/simulator-arm.cc",
-      "src/arm/stub-cache-arm.cc",
       "src/compiler/arm/code-generator-arm.cc",
       "src/compiler/arm/instruction-codes-arm.h",
       "src/compiler/arm/instruction-selector-arm.cc",
       "src/compiler/arm/linkage-arm.cc",
+      "src/ic/arm/ic-arm.cc",
+      "src/ic/arm/ic-compiler-arm.cc",
+      "src/ic/arm/stub-cache-arm.cc",
     ]
   } else if (v8_target_arch == "arm64") {
     sources += [
@@ -986,7 +989,6 @@ source_set("v8_base") {
       "src/arm64/frames-arm64.cc",
       "src/arm64/frames-arm64.h",
       "src/arm64/full-codegen-arm64.cc",
-      "src/arm64/ic-arm64.cc",
       "src/arm64/instructions-arm64.cc",
       "src/arm64/instructions-arm64.h",
       "src/arm64/instrument-arm64.cc",
@@ -1004,13 +1006,15 @@ source_set("v8_base") {
       "src/arm64/regexp-macro-assembler-arm64.h",
       "src/arm64/simulator-arm64.cc",
       "src/arm64/simulator-arm64.h",
-      "src/arm64/stub-cache-arm64.cc",
       "src/arm64/utils-arm64.cc",
       "src/arm64/utils-arm64.h",
       "src/compiler/arm64/code-generator-arm64.cc",
       "src/compiler/arm64/instruction-codes-arm64.h",
       "src/compiler/arm64/instruction-selector-arm64.cc",
       "src/compiler/arm64/linkage-arm64.cc",
+      "src/ic/arm64/ic-arm64.cc",
+      "src/ic/arm64/ic-compiler-arm64.cc",
+      "src/ic/arm64/stub-cache-arm64.cc",
     ]
   } else if (v8_target_arch == "mipsel") {
     sources += [