Update similar test to match failing case

Author: jishnub

test/runtests.jl

@@ -394,7 +394,7 @@ end
     @test s isa Matrix{Float32}
     @test size(s) == (2, 2)
 
-    s = similar(t, Float32, Int8(2), 2)
+    s = similar(t, Float32, (Int8(2), 2))
     @test s isa Matrix{Float32}
     @test size(s) == (2, 2)
 
@@ -1212,7 +1212,7 @@ end
 # The following code defines `MyArray1/2/3` with different `BroadcastStyle`s.
 # 1. `MyArray1` and `MyArray1` have `similar` defined.
 #     We use them to simulate `BroadcastStyle` overloading `Base.copyto!`.
-# 2. `MyArray3` has no `similar` defined. 
+# 2. `MyArray3` has no `similar` defined.
 #    We use it to simulate `BroadcastStyle` overloading `Base.copy`.
 # 3. Their resolved style could be summaryized as (`-` means conflict)
 #              |  MyArray1  |  MyArray2  |  MyArray3  |  Array
@@ -1308,7 +1308,7 @@ Base.BroadcastStyle(::Broadcast.ArrayStyle{MyArray2}, S::Broadcast.DefaultArrayS
     f(s) = s .+= 1
     f(s)
     @test (@allocated f(s)) == 0
-    
+
     # issue #185
     A = StructArray(randn(ComplexF64, 3, 3))
     B = randn(ComplexF64, 3, 3)
@@ -1327,7 +1327,7 @@ Base.BroadcastStyle(::Broadcast.ArrayStyle{MyArray2}, S::Broadcast.DefaultArrayS
 
     @testset "ambiguity check" begin
         test_set = Any[StructArray([1;2+im]),
-                    1:2, 
+                    1:2,
                     (1,2),
                     StructArray(@SArray [1;1+2im]),
                     (@SArray [1 2]),