Crash due to infinite recursion when parsing c file

Steps to reproduce:

1. Create some folder (i.e. test), download attached limits-caselabels.c into it
1. qt-creator: File -> New File or Project -> Import Existing Project ->
3. Select test folder
4. Finish project setup
5. Wait for qt creator to finish parsing files
6. qt-creator will crash

Stacktrace:
#0 0x00007fffd9699e94 in CPlusPlus::AST::AST() (this=0x7fff6d861070)
at ../3rdparty/cplusplus/AST.cpp:42
#1 0x00007fffd96c3ce3 in CPlusPlus::Parser::parseNumericLiteral(CPlusPlus::ExpressionAST*&) (this=0x7fff6d861070) at ../3rdparty/cplusplus/AST.h:307
#2 0x00007fffd96c3ce3 in CPlusPlus::Parser::parseNumericLiteral(CPlusPlus::ExpressionAST*&) (this=0x7fff6d861070) at ../3rdparty/cplusplus/AST.h:3117
#3 0x00007fffd96c3ce3 in CPlusPlus::Parser::parseNumericLiteral(CPlusPlus::ExpressionAST*&) (this=this@entry=0x7fffc11738a0, node=@0x7fff6d861058: 0x0) at ../3rdparty/cplusplus/Parser.cpp:4233
#4 0x00007fffd96cb065 in CPlusPlus::Parser::parsePrimaryExpression(CPlusPlus::ExpressionAST*&) (this=this@entry=0x7fffc11738a0, node=@0x7fff6d861058: 0x0) at ../3rdparty/cplusplus/Parser.cpp:4291
#5 0x00007fffd96cb4cf in CPlusPlus::Parser::parseCorePostfixExpression(CPlusPlus::ExpressionAST*&) (this=this@entry=0x7fffc11738a0, node=@0x7fff6d861058: 0x0) at ../3rdparty/cplusplus/Parser.cpp:4909
#6 0x00007fffd96cb89d in CPlusPlus::Parser::parsePostfixExpression(CPlusPlus::ExpressionAST*&) (this=this@entry=0x7fffc11738a0, node=@0x7fff6d861058: 0x0) at ../3rdparty/cplusplus/Parser.cpp:4917
#7 0x00007fffd96cbec7 in CPlusPlus::Parser::parseUnaryExpression(CPlusPlus::ExpressionAST*&) (this=this@entry=0x7fffc11738a0, node=@0x7fff6d861058: 0x0) at ../3rdparty/cplusplus/Parser.cpp:5053
#8 0x00007fffd96ce495 in CPlusPlus::Parser::parseCastExpression(CPlusPlus::ExpressionAST*&) (this=this@entry=0x7fffc11738a0, node=@0x7fff6d861058: 0x0) at ../3rdparty/cplusplus/Parser.cpp:5280
#9 0x00007fffd96cee6b in CPlusPlus::Parser::parseConditionalExpression(CPlusPlus::ExpressionAST*&) (this=this@entry=0x7fffc11738a0, node=@0x7fff6d861058: 0x0) at ../3rdparty/cplusplus/Parser.cpp:5340
#10 0x00007fffd96ceec5 in CPlusPlus::Parser::parseConstantExpression(CPlusPlus::ExpressionAST*&) (this=this@entry=0x7fffc11738a0, node=@0x7fff6d861058: 0x0) at ../3rdparty/cplusplus/Parser.cpp:5371
#11 0x00007fffd96d9c27 in CPlusPlus::Parser::parseLabeledStatement(CPlusPlus::StatementAST*&) (this=this@entry=0x7fffc11738a0, node=@0x7fff6d861030: 0x0) at ../3rdparty/cplusplus/Parser.cpp:3619
#12 0x00007fffd96ca803 in CPlusPlus::Parser::parseStatement(CPlusPlus::StatementAST*&) (this=this@entry=0x7fffc11738a0, node=@0x7fff6d861030: 0x0) at ../3rdparty/cplusplus/Parser.cpp:3130
#13 0x00007fffd96d9c46 in CPlusPlus::Parser::parseLabeledStatement(CPlusPlus::StatementAST*&) (this=this@entry=0x7fffc11738a0, node=@0x7fff6d860ff8: 0x0) at ../3rdparty/cplusplus/Parser.cpp:3621
#14 0x00007fffd96ca803 in CPlusPlus::Parser::parseStatement(CPlusPlus::StatementAST*&) (this=this@entry=0x7fffc11738a0, node=@0x7fff6d860ff8: 0x0) at ../3rdparty/cplusplus/Parser.cpp:3130
#15 0x00007fffd96d9c46 in CPlusPlus::Parser::parseLabeledStatement(CPlusPlus::StatementAST*&) (this=this@entry=0x7fffc11738a0, node=@0x7fff6d860fc0: 0x0) at ../3rdparty/cplusplus/Parser.cpp:3621
#16 0x00007fffd96ca803 in CPlusPlus::Parser::parseStatement(CPlusPlus::StatementAST*&) (this=this@entry=0x7fffc11738a0, node=@0x7fff6d860fc0: 0x0) at ../3rdparty/cplusplus/Parser.cpp:3130
[... infinite recusion of Parser.cpp:3130 -> Parser.cpp:3621 -> Parser.cpp:3130...]