Arrays and hashes

Aggregate data types are very important for the language, let us test them too. First, trivial test cases for creating and printing arrays:

my a[];
a = 3, 4, 5;
say a; ## 3, 4, 5

my b[] = 7, 8, 9;
say b; ## 7, 8, 9

And hashes:

my h{};
say h; ## 

my g{} = "a": "b", "c": "d";
say g; ## a: b, c: d

Then try using variables as array indices or hash keys:

my a[] = 2, 4, 6, 8, 10;
my i = 3;
say a[i]; ## 8

my b{} = "a": 1, "b": 2;
my j = "b";
say b{j}; ## 2

This test works fine.

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