Fix MinGW autotest failures in Qt 5

Status as of 30.1.2012: Issues are basically fixed, what is currently blocking is that tst_qfilesystemmodel/MinGW hangs when run in the CI. It is not clear why.

qtbase stable:

cmake: Fixed.
tst_qimagereader: Network issue, see below
tst_qnetworkdiskcache
tst_qsslsocket
tst_qstring: tst_QString::literals() 'str.data_ptr()->ref.isStatic()' returned FALSE (although QStringLiteral is defined there). Test also shows a lot of warnings about print-formats (MinGW does not support %l, %z): 3df0a41a7f95b1b37848e12cc1a3df6c5a539c29 , 267e2bbee434decc4759fbf47a52294c5acaf777 (dev)
tst_qxmlsimplereader: Network issue, see below
tst_selftests: Float format issue '(operandLeft): 1e-007' != ' (operandLeft): 1e-07'), and issue running a sub-binary: 326a5e0bca9e77ce9d6a93e301c6b52a56278453 (dev)
tst_networkselftest [insignificant]
tst_qftp [insignificant]
tst_qnetworkreply [insignificant]
tst_qfilesystemmodel: Hangs. Attempt #1: 322055b9c9d5a2feefb4ac8fb01c9f00c0978c22 (dev) , de-parallelize: 00ad768f10fea7c291bd3e0609c54965fb69df86 . Still hangs. Finally fixed by d14abab0d3c4d51077f9169f4a09ba3202eaa4a7 ?

declarative_dev:
cmake: Fixed
tst_qdebugmessageservice: Network issue, see below
tst_qqmldebugclient
tst_qqmldebugjs
tst_qqmlenginedebuginspectorintegration
tst_qqmlenginedebugservice
tst_qqmlinspector
tst_qqmlprofilerservice
tst_qquickanimations
tst_qquicklistview
tst_qquicktext: See QTBUG-28611
tst_qquicktextedit: See QTBUG-28611
tst_qquicktextinput: See QTBUG-28611
tst_qv8profilerservice

QtScript_dev:

cmake: Fixed
tst_qscriptjstestsuite
tst_qscriptv8testsuite

QtXmlPatterns_dev:
cmake?

Notes:

• Network tests: It seems that network tests behave differently with MinGW. While a test compiled against VS will pop up a message box asking the user to add an exception for the binary to the firewall/security configuration, tests compiled against MinGW will silently time out and fail.