BlinkGCPlugin: Fix detection of trace dispatching after inlined tracing.

tools/clang/blink_gc_plugin/tests/trace_after_dispatch_impl_error.txt

Index: tools/clang/blink_gc_plugin/tests/trace_after_dispatch_impl_error.txt
diff --git a/tools/clang/blink_gc_plugin/tests/trace_after_dispatch_impl_error.txt b/tools/clang/blink_gc_plugin/tests/trace_after_dispatch_impl_error.txt
index 68b5a72ee6d110fcc66bbd665f61fb10d91a43e1..058fccb8c3192763fe0272c6d083ff1cc6b02327 100644
--- a/tools/clang/blink_gc_plugin/tests/trace_after_dispatch_impl_error.txt
+++ b/tools/clang/blink_gc_plugin/tests/trace_after_dispatch_impl_error.txt
@@ -1,28 +1,34 @@
+trace_after_dispatch_impl_error.cpp:10:1: warning: [blink-gc] Missing dispatch to class 'TraceAfterDispatchInlinedDerived' in manual trace dispatch.
+inline void TraceAfterDispatchInlinedBase::traceImpl(
+^
+trace_after_dispatch_impl_error.cpp:35:1: warning: [blink-gc] Missing dispatch to class 'TraceAfterDispatchExternDerived' in manual trace dispatch.
+inline void TraceAfterDispatchExternBase::traceImpl(VisitorDispatcher visitor) {
+^
 In file included from trace_after_dispatch_impl_error.cpp:5:
-./trace_after_dispatch_impl_error.h:32:3: warning: [blink-gc] Class 'TraceAfterDispatchInlinedBase' has untraced fields that require tracing.
+./trace_after_dispatch_impl_error.h:39:3: warning: [blink-gc] Class 'TraceAfterDispatchInlinedBase' has untraced fields that require tracing.
   void traceAfterDispatchImpl(VisitorDispatcher visitor) {
   ^
-./trace_after_dispatch_impl_error.h:37:3: note: [blink-gc] Untraced field 'x_base_' declared here:
+./trace_after_dispatch_impl_error.h:44:3: note: [blink-gc] Untraced field 'x_base_' declared here:
   Member<X> x_base_;
   ^
-./trace_after_dispatch_impl_error.h:48:3: warning: [blink-gc] Base class 'TraceAfterDispatchInlinedBase' of derived class 'TraceAfterDispatchInlinedDerived' requires tracing.
+./trace_after_dispatch_impl_error.h:58:3: warning: [blink-gc] Base class 'TraceAfterDispatchInlinedBase' of derived class 'TraceAfterDispatchInlinedDerived' requires tracing.
   void traceAfterDispatchImpl(VisitorDispatcher visitor) {
   ^
-./trace_after_dispatch_impl_error.h:48:3: warning: [blink-gc] Class 'TraceAfterDispatchInlinedDerived' has untraced fields that require tracing.
-./trace_after_dispatch_impl_error.h:52:3: note: [blink-gc] Untraced field 'x_derived_' declared here:
+./trace_after_dispatch_impl_error.h:58:3: warning: [blink-gc] Class 'TraceAfterDispatchInlinedDerived' has untraced fields that require tracing.
+./trace_after_dispatch_impl_error.h:62:3: note: [blink-gc] Untraced field 'x_derived_' declared here:
   Member<X> x_derived_;
   ^
-trace_after_dispatch_impl_error.cpp:37:1: warning: [blink-gc] Class 'TraceAfterDispatchExternBase' has untraced fields that require tracing.
+trace_after_dispatch_impl_error.cpp:55:1: warning: [blink-gc] Class 'TraceAfterDispatchExternBase' has untraced fields that require tracing.
 inline void TraceAfterDispatchExternBase::traceAfterDispatchImpl(
 ^
-./trace_after_dispatch_impl_error.h:69:3: note: [blink-gc] Untraced field 'x_base_' declared here:
+./trace_after_dispatch_impl_error.h:84:3: note: [blink-gc] Untraced field 'x_base_' declared here:
   Member<X> x_base_;
   ^
-trace_after_dispatch_impl_error.cpp:47:1: warning: [blink-gc] Base class 'TraceAfterDispatchExternBase' of derived class 'TraceAfterDispatchExternDerived' requires tracing.
+trace_after_dispatch_impl_error.cpp:70:1: warning: [blink-gc] Base class 'TraceAfterDispatchExternBase' of derived class 'TraceAfterDispatchExternDerived' requires tracing.
 inline void TraceAfterDispatchExternDerived::traceAfterDispatchImpl(
 ^
-trace_after_dispatch_impl_error.cpp:47:1: warning: [blink-gc] Class 'TraceAfterDispatchExternDerived' has untraced fields that require tracing.
-./trace_after_dispatch_impl_error.h:82:3: note: [blink-gc] Untraced field 'x_derived_' declared here:
+trace_after_dispatch_impl_error.cpp:70:1: warning: [blink-gc] Class 'TraceAfterDispatchExternDerived' has untraced fields that require tracing.
+./trace_after_dispatch_impl_error.h:98:3: note: [blink-gc] Untraced field 'x_derived_' declared here:
   Member<X> x_derived_;
   ^
-6 warnings generated.
+8 warnings generated.