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[lldb/Interpreter] Fix language detection for the REPL InitFile #1739

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medismailben
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Previously, before loading the REPL language-specific init file, lldb
checked the selected target language in which case it returned an unknown
language type with the REPL target.

Instead, the patch calls Language::GetLanguagesSupportingREPLs and
look for the first element of that set. In case lldb was not configured
with a REPL language, then, it will just stop sourcing the REPL init
file and fallback to the original logic (continuing with the default
init file).

rdar://65836048

Differential Revision: https://reviews.llvm.org/D87076

Signed-off-by: Med Ismail Bennani [email protected]

Previously, before loading the REPL language-specific init file, lldb
checked the selected target language in which case it returned an unknown
language type with the REPL target.

Instead, the patch calls `Language::GetLanguagesSupportingREPLs` and
look for the first element of that set. In case lldb was not configured
with a REPL language, then, it will just stop sourcing the REPL init
file and fallback to the original logic (continuing with the default
init file).

rdar://65836048

Differential Revision: https://reviews.llvm.org/D87076

Signed-off-by: Med Ismail Bennani <[email protected]>
@medismailben
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@swift-ci test macOS Platform

@medismailben medismailben merged commit 472b8ae into swiftlang:apple/stable/20200714 Sep 3, 2020
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