[RemoteMirrors][4.2] Clear the Demangler on each iteration of the loop in getFieldTypeInfo. #17295
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…getFieldTypeInfo. Otherwise the Demangler can end up allocating hundreds of megabytes of memory. rdar://problem/40826018
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@swift-ci please test |
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Otherwise the Demangler can end up allocating hundreds of megabytes of memory.
Cherry-pick for 4.2.
rdar://problem/40826018