Add support for multi-dimensional arrays

[yulvil]

main.c

int main() {
   //int a[][3] = {{10,20,30},{40,50,60},{70,80,90}};
   int a[2][2];
   a[0][0] = 10;
   a[0][1] = 20;
   a[1][0] = 40;
   a[1][1] = 50;
   return a[1][1];
}

Go output: (no main function, no panic/errors/warnings!)

package main

type __int128_t int64
type __uint128_t uint64
type __builtin_ms_va_list []byte

func __init() {
}

TranslationUnitDecl 0x5649c3ab2df0 <<invalid sloc>> <invalid sloc>
|-TypedefDecl 0x5649c3ab32e8 <<invalid sloc>> <invalid sloc> implicit __int128_t '__int128'
| `-BuiltinType 0x5649c3ab3040 '__int128'
|-TypedefDecl 0x5649c3ab3348 <<invalid sloc>> <invalid sloc> implicit __uint128_t 'unsigned __int128'
| `-BuiltinType 0x5649c3ab3060 'unsigned __int128'
|-TypedefDecl 0x5649c3ab33d8 <<invalid sloc>> <invalid sloc> implicit __builtin_ms_va_list 'char *'
| `-PointerType 0x5649c3ab33a0 'char *'
|   `-BuiltinType 0x5649c3ab2e80 'char'
|-TypedefDecl 0x5649c3ab3688 <<invalid sloc>> <invalid sloc> implicit __builtin_va_list 'struct __va_list_tag [1]'
| `-ConstantArrayType 0x5649c3ab3630 'struct __va_list_tag [1]' 1 
|   `-RecordType 0x5649c3ab34b0 'struct __va_list_tag'
|     `-Record 0x5649c3ab3428 '__va_list_tag'
`-FunctionDecl 0x5649c3ab3728 <main.c:1:1, line:9:1> line:1:5 main 'int ()'
  `-CompoundStmt 0x5649c3aff628 <col:12, line:9:1>
    |-DeclStmt 0x5649c3ab3958 <line:3:4, col:15>
    | `-VarDecl 0x5649c3ab38f8 <col:4, col:14> col:8 used a 'int [2][2]'
    |-BinaryOperator 0x5649c3ab3ad8 <line:4:4, col:14> 'int' '='
    | |-ArraySubscriptExpr 0x5649c3ab3a90 <col:4, col:10> 'int' lvalue
    | | |-ImplicitCastExpr 0x5649c3ab3a78 <col:4, col:7> 'int *' <ArrayToPointerDecay>
    | | | `-ArraySubscriptExpr 0x5649c3ab3a00 <col:4, col:7> 'int [2]' lvalue
    | | |   |-ImplicitCastExpr 0x5649c3ab39e8 <col:4> 'int (*)[2]' <ArrayToPointerDecay>
    | | |   | `-DeclRefExpr 0x5649c3ab3970 <col:4> 'int [2][2]' lvalue Var 0x5649c3ab38f8 'a' 'int [2][2]'
    | | |   `-IntegerLiteral 0x5649c3ab3998 <col:6> 'int' 0
    | | `-IntegerLiteral 0x5649c3ab3a28 <col:9> 'int' 0
    | `-IntegerLiteral 0x5649c3ab3ab8 <col:14> 'int' 10
    |-BinaryOperator 0x5649c3aff288 <line:5:4, col:14> 'int' '='
    | |-ArraySubscriptExpr 0x5649c3aff240 <col:4, col:10> 'int' lvalue
    | | |-ImplicitCastExpr 0x5649c3aff228 <col:4, col:7> 'int *' <ArrayToPointerDecay>
    | | | `-ArraySubscriptExpr 0x5649c3aff1e0 <col:4, col:7> 'int [2]' lvalue
    | | |   |-ImplicitCastExpr 0x5649c3aff1c8 <col:4> 'int (*)[2]' <ArrayToPointerDecay>
    | | |   | `-DeclRefExpr 0x5649c3aff180 <col:4> 'int [2][2]' lvalue Var 0x5649c3ab38f8 'a' 'int [2][2]'
    | | |   `-IntegerLiteral 0x5649c3aff1a8 <col:6> 'int' 0
    | | `-IntegerLiteral 0x5649c3aff208 <col:9> 'int' 1
    | `-IntegerLiteral 0x5649c3aff268 <col:14> 'int' 20
    |-BinaryOperator 0x5649c3aff3b8 <line:6:4, col:14> 'int' '='
    | |-ArraySubscriptExpr 0x5649c3aff370 <col:4, col:10> 'int' lvalue
    | | |-ImplicitCastExpr 0x5649c3aff358 <col:4, col:7> 'int *' <ArrayToPointerDecay>
    | | | `-ArraySubscriptExpr 0x5649c3aff310 <col:4, col:7> 'int [2]' lvalue
    | | |   |-ImplicitCastExpr 0x5649c3aff2f8 <col:4> 'int (*)[2]' <ArrayToPointerDecay>
    | | |   | `-DeclRefExpr 0x5649c3aff2b0 <col:4> 'int [2][2]' lvalue Var 0x5649c3ab38f8 'a' 'int [2][2]'
    | | |   `-IntegerLiteral 0x5649c3aff2d8 <col:6> 'int' 1
    | | `-IntegerLiteral 0x5649c3aff338 <col:9> 'int' 0
    | `-IntegerLiteral 0x5649c3aff398 <col:14> 'int' 40
    |-BinaryOperator 0x5649c3aff4e8 <line:7:4, col:14> 'int' '='
    | |-ArraySubscriptExpr 0x5649c3aff4a0 <col:4, col:10> 'int' lvalue
    | | |-ImplicitCastExpr 0x5649c3aff488 <col:4, col:7> 'int *' <ArrayToPointerDecay>
    | | | `-ArraySubscriptExpr 0x5649c3aff440 <col:4, col:7> 'int [2]' lvalue
    | | |   |-ImplicitCastExpr 0x5649c3aff428 <col:4> 'int (*)[2]' <ArrayToPointerDecay>
    | | |   | `-DeclRefExpr 0x5649c3aff3e0 <col:4> 'int [2][2]' lvalue Var 0x5649c3ab38f8 'a' 'int [2][2]'
    | | |   `-IntegerLiteral 0x5649c3aff408 <col:6> 'int' 1
    | | `-IntegerLiteral 0x5649c3aff468 <col:9> 'int' 1
    | `-IntegerLiteral 0x5649c3aff4c8 <col:14> 'int' 50
    `-ReturnStmt 0x5649c3aff610 <line:8:4, col:17>
      `-ImplicitCastExpr 0x5649c3aff5f8 <col:11, col:17> 'int' <LValueToRValue>
        `-ArraySubscriptExpr 0x5649c3aff5d0 <col:11, col:17> 'int' lvalue
          |-ImplicitCastExpr 0x5649c3aff5b8 <col:11, col:14> 'int *' <ArrayToPointerDecay>
          | `-ArraySubscriptExpr 0x5649c3aff570 <col:11, col:14> 'int [2]' lvalue
          |   |-ImplicitCastExpr 0x5649c3aff558 <col:11> 'int (*)[2]' <ArrayToPointerDecay>
          |   | `-DeclRefExpr 0x5649c3aff510 <col:11> 'int [2][2]' lvalue Var 0x5649c3ab38f8 'a' 'int [2][2]'
          |   `-IntegerLiteral 0x5649c3aff538 <col:13> 'int' 1
          `-IntegerLiteral 0x5649c3aff598 <col:16> 'int' 1

[yulvil]

@elliotchance I will be working on this one next.