Bump rubocop-minitest from 0.29.0 to 0.31.0

Bumps [rubocop-minitest](https://github.com/rubocop/rubocop-minitest) from 0.29.0 to 0.31.0.
- [Release notes](https://github.com/rubocop/rubocop-minitest/releases)
- [Changelog](https://github.com/rubocop/rubocop-minitest/blob/master/CHANGELOG.md)
- [Commits](rubocop/rubocop-minitest@v0.29.0...v0.31.0)

---
updated-dependencies:
- dependency-name: rubocop-minitest
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Linting

Gemfile.lock

@@ -49,7 +49,7 @@ GEM
       unicode-display_width (>= 2.4.0, < 3.0)
     rubocop-ast (1.28.1)
       parser (>= 3.2.1.0)
-    rubocop-minitest (0.29.0)
+    rubocop-minitest (0.31.0)
       rubocop (>= 1.39, < 2.0)
     rubocop-performance (1.17.1)
       rubocop (>= 1.7.0, < 2.0)

test/basic_block_test.rb

@@ -95,7 +95,7 @@ def test_basic_block_position
 
       block1.build do |builder|
         assert inst = builder.ret
-        assert_equal LLVM::Instruction, inst.class
+        assert_instance_of LLVM::Instruction, inst
         assert_equal :ret, inst.opcode
 
         builder.position_before(inst)

test/instruction_test.rb

@@ -204,17 +204,17 @@ def test_builder_returns_non_instruction_ints
 
         prefixes.product(ops).map(&:join).each do |op|
           assert inst = builder.send(op, LLVM::Int32.from_i(0), LLVM::Int32.from_i(0))
-          assert_equal LLVM::Int32, inst.class
+          assert_instance_of LLVM::Int32, inst
           assert_equal "i32 0", inst.to_s
         end
 
         [:sdiv, :exact_sdiv, :udiv].each do |op|
           assert inst = builder.send(op, LLVM::Int32.from_i(0), LLVM::Int32.from_i(1))
-          assert_equal LLVM::Int32, inst.class
+          assert_instance_of LLVM::Int32, inst
           assert_equal "i32 0", inst.to_s
 
           assert inst = builder.send(op, LLVM::Int32.from_i(0), LLVM::Int32.from_i(0))
-          assert_equal LLVM::Poison, inst.class
+          assert_instance_of LLVM::Poison, inst
           assert_equal "i32 poison", inst.to_s
         end
       end
@@ -228,17 +228,17 @@ def test_builder_returns_non_instruction_floats
       fn.basic_blocks.append.build do |builder|
         [:fadd, :fsub, :fmul].each do |op|
           assert inst = builder.send(op, LLVM::Float.from_f(0), LLVM::Float.from_f(0))
-          assert_equal LLVM::Float, inst.class
+          assert_instance_of LLVM::Float, inst
           assert_equal "float 0.000000e+00", inst.to_s
         end
 
         [:fdiv, :frem].each do |op|
           assert inst = builder.send(op, LLVM::Float.from_f(0), LLVM::Float.from_f(1))
-          assert_equal LLVM::Float, inst.class
+          assert_instance_of LLVM::Float, inst
           assert_equal "float 0.000000e+00", inst.to_s
 
           assert inst = builder.send(op, LLVM::Float.from_f(0), LLVM::Float.from_f(0))
-          assert_equal LLVM::Float, inst.class
+          assert_instance_of LLVM::Float, inst
           assert_equal 'float 0x7FF8000000000000', inst.to_s
         end
       end