Incorrect OverflowException for nested computation

vyper Version (output of vyper --version OR linkable commit hash vyperlang/vyper@commitish): 0.4.0rc3+commit.80708e6d

In case of nested computation the compiler can incorrectly emit an OverflowException.

This was not an issue in 0.3.10.

@external
def foo():
        x: uint256 = (10**3)**2

fails to compile with:

OverflowException: Base is too large, calculation will always overflow

It is not limited to nested exponentiation, this also fails:

@external
def foo():
        x: uint256 = (100*2)**3

vyperlang / vyper