Fix crash when undoing past the first print transaction.#160

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marsupial wants to merge 10 commits intoroot-project:masterfrom

Commits on Jul 7, 2017

Report executePrintValue errors with DiagnosticsEngine.
marsupial
committed
Fix crash when dumping an un-evaluated cling::Value and standardize string for undefined values.
marsupial
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Propagate errors and report them a bit better in ValueExtractionSynthesizer::Transform.
marsupial
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Fix crash in ValueExtractionSynthesizer::FindAndCacheRuntimeDecls() and report errors.
marsupial
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Report ValueExtractionSynthesizer errors with DiagnosticsEngine.
marsupial
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Fix crash if transactions are unloaded past the first printing of an expression.
marsupial
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Use DiagnosticsEngine to report error when RuntimePrintValue.h cannot be loaded.
marsupial
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Check if CLING_RUNTIME_PRINT_VALUE_H defined before including RuntimePrintValue.h.
marsupial
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Fix undo value printing tests for CERN/master.
marsupial
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Partially revert "Fix test for CERN/master."
marsupial
committed