Remove illegal reflective warning by adding -J-add-opens (openjdk#10)

Author: the1derer

make/CompileInterimLangtools.gmk

@@ -71,6 +71,15 @@ define SetupInterimModule
       COPY := .gif .png .xml .css .js javax.tools.JavaCompilerTool, \
       BIN := $(BUILDTOOLS_OUTPUTDIR)/interim_langtools_modules/$1.interim, \
       ADD_JAVAC_FLAGS := --module-path $(BUILDTOOLS_OUTPUTDIR)/interim_langtools_modules \
+          -J--add-opens=jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED \
+          -J--add-opens=jdk.compiler/com.sun.tools.javac.code=ALL-UNNAMED \
+          -J--add-opens=jdk.compiler/com.sun.tools.javac.comp=ALL-UNNAMED \
+          -J--add-opens=jdk.compiler/com.sun.tools.javac.file=ALL-UNNAMED \
+          -J--add-opens=jdk.compiler/com.sun.tools.javac.main=ALL-UNNAMED \
+          -J--add-opens=jdk.compiler/com.sun.tools.javac.model=ALL-UNNAMED \
+          -J--add-opens=jdk.compiler/com.sun.tools.javac.processing=ALL-UNNAMED \
+          -J--add-opens=jdk.compiler/com.sun.tools.javac.tree=ALL-UNNAMED \
+          -J--add-opens=jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED \
           --patch-module $1.interim=$(TOPDIR)/checker-qual.jar \
           $$(INTERIM_LANGTOOLS_ADD_EXPORTS) \
           -Xlint:-module, \

make/CompileJavaModules.gmk

@@ -597,6 +597,15 @@ $(eval $(call SetupJavaCompilation, $(MODULE), \
     HEADERS := $(SUPPORT_OUTPUTDIR)/headers, \
     CREATE_API_DIGEST := true, \
     ADD_JAVAC_FLAGS := \
+        -J--add-opens=jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED \
+        -J--add-opens=jdk.compiler/com.sun.tools.javac.code=ALL-UNNAMED \
+        -J--add-opens=jdk.compiler/com.sun.tools.javac.comp=ALL-UNNAMED \
+        -J--add-opens=jdk.compiler/com.sun.tools.javac.file=ALL-UNNAMED \
+        -J--add-opens=jdk.compiler/com.sun.tools.javac.main=ALL-UNNAMED \
+        -J--add-opens=jdk.compiler/com.sun.tools.javac.model=ALL-UNNAMED \
+        -J--add-opens=jdk.compiler/com.sun.tools.javac.processing=ALL-UNNAMED \
+        -J--add-opens=jdk.compiler/com.sun.tools.javac.tree=ALL-UNNAMED \
+        -J--add-opens=jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED \
         $($(MODULE)_ADD_JAVAC_FLAGS) \
         --module-source-path $(MODULESOURCEPATH) \
         --module-path $(MODULEPATH) \