Improve CodeStubAssembler assert functionality

src/code-stub-assembler.h

Index: src/code-stub-assembler.h
diff --git a/src/code-stub-assembler.h b/src/code-stub-assembler.h
index b5642d4badeaf3c73174e7788f1d37c2088c9108..f23be2ee91a1a8f97b4a94a52d95bfa544b1cee8 100644
--- a/src/code-stub-assembler.h
+++ b/src/code-stub-assembler.h
@@ -147,7 +147,8 @@ class CodeStubAssembler : public compiler::CodeAssembler {
   compiler::Node* InnerAllocate(compiler::Node* previous,
                                 compiler::Node* offset);
 
-  void Assert(compiler::Node* condition);
+  void Assert(compiler::Node* condition, const char* string = nullptr,
+              const char* file = nullptr, int line = 0);
 
   // Check a value for smi-ness
   compiler::Node* TaggedIsSmi(compiler::Node* a);
@@ -990,6 +991,8 @@ class CodeStubAssembler : public compiler::CodeAssembler {
   static const int kElementLoopUnrollThreshold = 8;
 };
 
+#define CSA_ASSERT(x) Assert((x), #x, __FILE__, __LINE__)
+
 DEFINE_OPERATORS_FOR_FLAGS(CodeStubAssembler::AllocationFlags);
 
 }  // namespace internal