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=== tests/cases/compiler/narrowingWithNonNullExpression.ts ===
const m = ''.match('');
>m : Symbol(m, Decl(narrowingWithNonNullExpression.ts, 0, 5))
>''.match : Symbol(String.match, Decl(lib.es5.d.ts, --, --))
>match : Symbol(String.match, Decl(lib.es5.d.ts, --, --))
m! && m[0];
>m : Symbol(m, Decl(narrowingWithNonNullExpression.ts, 0, 5))
>m : Symbol(m, Decl(narrowingWithNonNullExpression.ts, 0, 5))
m?.[0]! && m[0];
>m : Symbol(m, Decl(narrowingWithNonNullExpression.ts, 0, 5))
>m : Symbol(m, Decl(narrowingWithNonNullExpression.ts, 0, 5))
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