Use ReferenceError from right realm/context (#107)

The "this is not initialized" ReferenceError for a class C defined in
context B but instantiated in context A should be an instance of the
ReferenceError from A, not B.

Author: bnoordhuis

quickjs.c

@@ -15112,7 +15112,8 @@ static JSValue JS_CallInternal(JSContext *caller_ctx, JSValueConst func_obj,
                 idx = get_u16(pc);
                 pc += 2;
                 if (unlikely(JS_IsUninitialized(var_buf[idx]))) {
-                    JS_ThrowReferenceErrorUninitialized2(ctx, b, idx, FALSE);
+                    JS_ThrowReferenceErrorUninitialized2(caller_ctx, b, idx,
+                                                         FALSE);
                     goto exception;
                 }
                 sp[0] = JS_DupValue(ctx, var_buf[idx]);
@@ -15125,7 +15126,8 @@ static JSValue JS_CallInternal(JSContext *caller_ctx, JSValueConst func_obj,
                 idx = get_u16(pc);
                 pc += 2;
                 if (unlikely(JS_IsUninitialized(var_buf[idx]))) {
-                    JS_ThrowReferenceErrorUninitialized2(ctx, b, idx, FALSE);
+                    JS_ThrowReferenceErrorUninitialized2(caller_ctx, b, idx,
+                                                         FALSE);
                     goto exception;
                 }
                 set_value(ctx, &var_buf[idx], sp[-1]);
@@ -15138,7 +15140,8 @@ static JSValue JS_CallInternal(JSContext *caller_ctx, JSValueConst func_obj,
                 idx = get_u16(pc);
                 pc += 2;
                 if (unlikely(!JS_IsUninitialized(var_buf[idx]))) {
-                    JS_ThrowReferenceError(ctx, "'this' can be initialized only once");
+                    JS_ThrowReferenceError(caller_ctx,
+                                           "'this' can be initialized only once");
                     goto exception;
                 }
                 set_value(ctx, &var_buf[idx], sp[-1]);

test262_errors.txt

@@ -5,8 +5,6 @@ test262/test/built-ins/AsyncGeneratorPrototype/return/return-suspendedStart-brok
 test262/test/built-ins/AsyncGeneratorPrototype/return/return-suspendedStart-broken-promise.js:34: strict mode: TypeError: $DONE() not called
 test262/test/built-ins/AsyncGeneratorPrototype/return/return-suspendedYield-broken-promise-try-catch.js:39: TypeError: $DONE() not called
 test262/test/built-ins/AsyncGeneratorPrototype/return/return-suspendedYield-broken-promise-try-catch.js:39: strict mode: TypeError: $DONE() not called
-test262/test/built-ins/Function/internals/Construct/derived-this-uninitialized-realm.js:20: Test262Error: Expected a ReferenceError but got a different error constructor with the same name
-test262/test/built-ins/Function/internals/Construct/derived-this-uninitialized-realm.js:20: strict mode: Test262Error: Expected a ReferenceError but got a different error constructor with the same name
 test262/test/built-ins/RegExp/lookahead-quantifier-match-groups.js:27: Test262Error: Expected [a, abc] and [a, undefined] to have the same contents. ? quantifier
 test262/test/built-ins/RegExp/lookahead-quantifier-match-groups.js:27: strict mode: Test262Error: Expected [a, abc] and [a, undefined] to have the same contents. ? quantifier
 test262/test/built-ins/TypedArray/prototype/set/array-arg-targetbuffer-detached-on-get-src-value-no-throw.js:30: TypeError: out-of-bound numeric index (Testing with Float64Array.)