Fix typos and remove redundant use of 'Object#to_s'

spec/cbor/encoder_spec.cr

@@ -71,7 +71,7 @@ describe CBOR::Encoder do
         bytes_arr = hex_string.split.map(&.to_u8(16))
         want_bytes = Bytes.new(bytes_arr.to_unsafe, bytes_arr.size)
 
-        it "econdes #{value.to_s} to #{want_bytes.hexstring}" do
+        it "encodes #{value} to #{want_bytes.hexstring}" do
           res = IO::Memory.new
 
           encoder = CBOR::Encoder.new(res)

spec/cbor/lexer_spec.cr

@@ -21,7 +21,7 @@ describe CBOR::Lexer do
       ]
 
       tests.each do |tt|
-        it "reads #{tt[:bytes].hexstring} as #{tt[:value].to_s}" do
+        it "reads #{tt[:bytes].hexstring} as #{tt[:value]}" do
           lexer = CBOR::Lexer.new(tt[:bytes])
 
           token = lexer.next_token

spec/cbor/to_cbor_spec.cr

@@ -41,7 +41,7 @@ describe "to_cbor" do
     tests.each do |tt|
       type, bytes, value = tt
 
-      it "encodes #{value.inspect} of type #{type.to_s}" do
+      it "encodes #{value.inspect} of type #{type}" do
         res = value.to_cbor
         res.hexdump.should eq(bytes.hexdump)
       end

src/cbor/diagnostic.cr

@@ -1,5 +1,5 @@
 # Reads a CBOR input into a diagnostic string.
-# This consumes the IO and is mostly usedful to tests again the example
+# This consumes the IO and is mostly useful to tests again the example
 # provided in the RFC and ensuring a correct functioning of the `CBOR::Lexer`.
 class CBOR::Diagnostic
   @lexer : Lexer
@@ -63,7 +63,7 @@ class CBOR::Diagnostic
       when Tag::NegativeBigNum
         read_big_int(negative: true)
       else
-        "#{token.value.value.to_s}(#{next_value})"
+        "#{token.value.value}(#{next_value})"
       end
     when Token::FloatT
       return "NaN" if token.value.nan?

src/cbor/encoder.cr

@@ -48,7 +48,7 @@ class CBOR::Encoder
     return write(value.to_u64) if value >= 0
 
     # When it's negative, transform it into a positive value and write the
-    # resulting unsigled int with an offset
+    # resulting unsigned int with an offset
     positive_value = -(value + 1)
     write(positive_value.to_u64, 0x20)
   end

src/cbor/from_cbor.cr

@@ -180,7 +180,7 @@ def BigInt.new(decoder : CBOR::Decoder)
 end
 
 # Reads the CBOR value as a BigDecimal.
-# If the next token is a flaot, then it'll be transformed to a BigDecimal,
+# If the next token is a float, then it'll be transformed to a BigDecimal,
 # otherwhise the value must be correctly tagged with value 4 (decimal fraction)
 # or 5 (big float).
 def BigDecimal.new(decoder : CBOR::Decoder)
@@ -231,7 +231,7 @@ def Union.new(decoder : CBOR::Decoder)
       return {{type}}.new(decoder)
     {% end %}
     else
-      # This case check is non-exaustive on purpose
+      # This case check is non-exhaustive on purpose
     end
   {% end %}
 

src/cbor/lexer.cr

@@ -164,7 +164,7 @@ class CBOR::Lexer
   end
 
   private def consume_simple_value(id) : Token::SimpleValueT
-    raise ParseError.new("Invalid simple value #{id.to_s}") if id > 255
+    raise ParseError.new("Invalid simple value #{id}") if id > 255
     Token::SimpleValueT.new(value: SimpleValue.new(id.to_u8))
   end
 
@@ -176,7 +176,7 @@ class CBOR::Lexer
     {% conv = %w(to_i8 to_i16 to_i32 to_i64 to_i128) %}
 
     {% for uint, index in uints %}
-      # Reads the `{{uint.id}}` as a negative integer, returning the samllest
+      # Reads the `{{uint.id}}` as a negative integer, returning the smallest
       # integer capable of containing the value.
       def to_negative_int(value : {{uint.id}})
         int = begin

src/cbor/serializable.cr

@@ -143,7 +143,7 @@ module CBOR
       end
 
       # When the type is inherited, carry over the `new`
-      # so it can compete with other possible intializes
+      # so it can compete with other possible initializes
 
       macro inherited
         def self.new(decoder : ::CBOR::Decoder)

src/cbor/simple_value.cr

@@ -15,7 +15,7 @@ enum CBOR::SimpleValue : UInt8
     when Undefined
       "undefined"
     else
-      "simple(#{self.value.to_s})"
+      "simple(#{self.value})"
     end
   end
 

src/cbor/to_cbor.cr

@@ -79,7 +79,7 @@ module Time::Format::RFC_3339
 end
 
 module Time::EpochConverter
-  # Emits the time as a tagged unix timestamp, asp specified by
+  # Emits the time as a tagged unix timestamp, as specified by
   # [RFC 7049 section 2.4.1](https://tools.ietf.org/html/rfc7049#section-2.4.1).
   #
   def self.to_cbor(value : Time, encoder : CBOR::Encoder)
@@ -108,7 +108,7 @@ struct Time
 end
 
 # struct BigInt
-#   # Encodes the value a bytes arrya tagged with the CBOR tag 2 or 3, as specified
+#   # Encodes the value a bytes array tagged with the CBOR tag 2 or 3, as specified
 #   # in [RFC 7049 Section 2.4.2](https://tools.ietf.org/html/rfc7049#section-2.4.2).
 #   def to_cbor(encoder : CBOR::Encoder)
 #     encoded_value = BigInt.new(self)