[compiler] Stop delegating CompilationInfo::context.

src/compilation-info.h

Index: src/compilation-info.h
diff --git a/src/compilation-info.h b/src/compilation-info.h
index 2c3c2006b5a02f3e93562969e3c64793ce6fa62f..7f13aeb2601371fcde28150104ae80ef581d5f94 100644
--- a/src/compilation-info.h
+++ b/src/compilation-info.h
@@ -68,7 +68,6 @@ class CompilationInfo final {
   Handle<Script> script() const;
   FunctionLiteral* literal() const;
   DeclarationScope* scope() const;
-  Handle<Context> context() const;
   Handle<SharedFunctionInfo> shared_info() const;
   bool has_shared_info() const;
   // -----------------------------------------------------------
@@ -218,6 +217,9 @@ class CompilationInfo final {
            (FLAG_trap_on_stub_deopt && IsStub());
   }
 
+  bool has_context() const;
+  Context* context() const;
+
   bool has_native_context() const;
   Context* native_context() const;