Extend the suppression for issue 138045 (use-after-free errors in glslang_parse)

tools/valgrind/memcheck/suppressions.txt

 # There are four kinds of suppressions in this file.
 # 1. third party stuff we have no control over
 #
 # 2. intentional unit test errors, or stuff that is somehow a false positive
 # in our own code, or stuff that is so trivial it's not worth fixing
 #
 # 3. Suppressions for real chromium bugs that are not yet fixed.
 # These should all be in chromium's bug tracking system (but a few aren't yet).
 # Periodically we should sweep this file and the bug tracker clean by
 # running overnight and removing outdated bugs/suppressions.
@@ skipping 5531 matching lines @@
    fun:_ZN7WebCore21DedicatedWorkerThread12runEventLoopEv
    fun:_ZN7WebCore12WorkerThread12workerThreadEv
    fun:_ZN7WebCore12WorkerThread17workerThreadStartEPv
 }
 {
    bug_138045
    Memcheck:Unaddressable
    ...
    fun:_ZSteqIcEN9__gnu_cxx11__enable_ifIXsrSt9__is_charIT_E7__valueEbE6__typeERKSbIS3_St11char_traitsIS3_ESaIS3_EESC_
    fun:_ZL12getDirectivePKN2pp5TokenE
+   ...
    fun:_ZN2pp15DirectiveParser14parseDirectiveEPNS_5TokenE
    fun:_ZN2pp15DirectiveParser3lexEPNS_5TokenE
    fun:_ZN2pp13MacroExpander8getTokenEPNS_5TokenE
    fun:_ZN2pp13MacroExpander3lexEPNS_5TokenE
    fun:_ZN2pp12Preprocessor3lexEPNS_5TokenE
    fun:_ZL12string_inputPciPv
    fun:_ZL18yy_get_next_bufferPv
    fun:_Z5yylexP7YYSTYPEPv
    fun:_Z7yyparseP13TParseContext
    fun:_Z13glslang_parseP13TParseContext
@@ skipping 191 matching lines @@
    obj:/lib/libselinux.so.1
    obj:/lib/libselinux.so.1
 }
 {
    bug_todo_grep
    Memcheck:Leak
    fun:malloc
    obj:/bin/grep
    obj:/bin/grep
 }