Ben Barham 50a73a3965 [AST] Prevent memory leak when allocating ExternalSourceLocs ...

c763ab5d1e fixed an issue in
`getSerializedLocs` where it never actually cached its result (and thus
always allocated a new `CachedExternalSourceLocs`). Unfortunately it
missed a leak that could occur when `DocRanges` grows beyond its initial
size of 4.

Allocate `DocRanges` upfront in the `ASTContext` as well in order to
prevent this leak.

Resolves rdar://85472403.

2021-11-30 10:31:31 +10:00

3.7 KiB

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