Prevent looking up symbol for as const from triggering an error #48464
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typescript-bot added Author: Team For Uncommitted Bug 
RyanCavanaugh approved these changes Mar 28, 2022
sidharthv96 added a commit to sidharthv96/TypeScript that referenced this pull request Apr 1, 2022
* upstream/main: (473 commits) Correct node used for isDefinition calculation (microsoft#48499) fix(48405): emit dummy members from a mapped type (microsoft#48481) CFA for dependent parameters typed by generic constraints (microsoft#48411) No contextual typing from return types for boolean literals (microsoft#48380) fix(47733): omit JSDoc comment template suggestion on node with existing JSDoc (microsoft#47748) Ensure that we copy empty NodeArrays during transform (microsoft#48490) Add a new compiler option `moduleSuffixes` to expand the node module resolver's search algorithm (microsoft#48189) feat(27615): Add missing member fix should work for type literals (microsoft#47212) Add label details to completion entry (microsoft#48429) Enable method signature completion for object literals (microsoft#48168) Fix string literal completions when a partially-typed string fixes inference to a type parameter (microsoft#48410) fix(48445): show errors on type-only import/export specifiers in JavaScript files (microsoft#48449) Fix newline inserted in empty block at end of formatting range (microsoft#48463) Prevent looking up symbol for as const from triggering an error (microsoft#48464) Revise accessor resolution logic and error reporting (microsoft#48459) fix(48166): skip checking module.exports in a truthiness call expression (microsoft#48337) LEGO: Merge pull request 48450 LEGO: Merge pull request 48436 fix(48031): show circularity error for self referential get accessor annotations (microsoft#48050) Revert "Fix contextual discrimination for omitted members (microsoft#43937)" (microsoft#48426) ...
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Fixes #48462
This is pretty much a followup to #36741 that further hardens us to never report a symbol-not-found error when looking up the symbol for a
constinas const, rather than relying on either not hittingresolveName(in the case of producing diagnostics) or not reporting the diagnostic (in the case of services), since there's never a symbol at that location (intentionally - it refers to the constant type of the expression, instead).