tests/cases/compiler/arithAssignTyping.ts(3,1): error TS2364: Invalid left-hand side of assignment expression.
tests/cases/compiler/arithAssignTyping.ts(4,1): error TS2365: Operator '+=' cannot be applied to types 'typeof f' and 'number'.
tests/cases/compiler/arithAssignTyping.ts(5,1): error TS2362: The left-hand side of an arithmetic operation must be of type 'any', 'number' or an enum type.
tests/cases/compiler/arithAssignTyping.ts(6,1): error TS2362: The left-hand side of an arithmetic operation must be of type 'any', 'number' or an enum type.
tests/cases/compiler/arithAssignTyping.ts(7,1): error TS2362: The left-hand side of an arithmetic operation must be of type 'any', 'number' or an enum type.
tests/cases/compiler/arithAssignTyping.ts(8,1): error TS2362: The left-hand side of an arithmetic operation must be of type 'any', 'number' or an enum type.
tests/cases/compiler/arithAssignTyping.ts(9,1): error TS2362: The left-hand side of an arithmetic operation must be of type 'any', 'number' or an enum type.
tests/cases/compiler/arithAssignTyping.ts(10,1): error TS2362: The left-hand side of an arithmetic operation must be of type 'any', 'number' or an enum type.
tests/cases/compiler/arithAssignTyping.ts(11,1): error TS2362: The left-hand side of an arithmetic operation must be of type 'any', 'number' or an enum type.
tests/cases/compiler/arithAssignTyping.ts(12,1): error TS2362: The left-hand side of an arithmetic operation must be of type 'any', 'number' or an enum type.
tests/cases/compiler/arithAssignTyping.ts(13,1): error TS2362: The left-hand side of an arithmetic operation must be of type 'any', 'number' or an enum type.
tests/cases/compiler/arithAssignTyping.ts(14,1): error TS2362: The left-hand side of an arithmetic operation must be of type 'any', 'number' or an enum type.