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.


==== tests/cases/compiler/arithAssignTyping.ts (12 errors) ====
    class f { }
    
    f += ''; // error
    ~
!!! error TS2364: Invalid left-hand side of assignment expression.
    f += 1; // error
    ~~~~~~
!!! error TS2365: Operator '+=' cannot be applied to types 'typeof f' and 'number'.
    f -= 1; // error
    ~
!!! error TS2362: The left-hand side of an arithmetic operation must be of type 'any', 'number' or an enum type.
    f *= 1; // error
    ~
!!! error TS2362: The left-hand side of an arithmetic operation must be of type 'any', 'number' or an enum type.
    f /= 1; // error
    ~
!!! error TS2362: The left-hand side of an arithmetic operation must be of type 'any', 'number' or an enum type.
    f %= 1; // error
    ~
!!! error TS2362: The left-hand side of an arithmetic operation must be of type 'any', 'number' or an enum type.
    f &= 1; // error
    ~
!!! error TS2362: The left-hand side of an arithmetic operation must be of type 'any', 'number' or an enum type.
    f |= 1; // error
    ~
!!! error TS2362: The left-hand side of an arithmetic operation must be of type 'any', 'number' or an enum type.
    f <<= 1; // error
    ~
!!! error TS2362: The left-hand side of an arithmetic operation must be of type 'any', 'number' or an enum type.
    f >>= 1; // error
    ~
!!! error TS2362: The left-hand side of an arithmetic operation must be of type 'any', 'number' or an enum type.
    f >>>= 1; // error
    ~
!!! error TS2362: The left-hand side of an arithmetic operation must be of type 'any', 'number' or an enum type.
    f ^= 1; // error
    ~
!!! error TS2362: The left-hand side of an arithmetic operation must be of type 'any', 'number' or an enum type.