Issue regarding -Wmissing-field-initializers

[Robert Dumitru]

The warning: missing initializer for field ... [-Wmissing-field-initializers] is being thrown incorrectly.

The following code is correct, however [-Wmissing-field-initializers] are shown.

struct test_t{
  int value1;
  int value2;
};

struct test_t test[] = {
  [0].value1 = 1,
  [0].value2 = 2,
  [1].value1 = 10,
  [1].value2 = 20
};

int main(){
  return 0;
}

warning: missing initializer for field 'value2' of 'struct test_t' [-Wmissing-field-initializers]
   [0].value2 = 2,
warning: missing initializer for field 'value2' of 'struct test_t' [-Wmissing-field-initializers]
   [1].value2 = 20

The initialization is correct:
_test:
.long 1
.long 2
.long 10
.long 20

This bug can be reproduced with (GNU Arm Embedded Toolchain 10-2020-q4-major) 10.2.1 20201103. Please note you need the -Wextra flag in order to reproduce this.