feat: initial skeleton for the partiql-ir crate (#173)

Also Updates coverage to 2022-08-11 nightly to fix code coverage CI breakage.

Author: almann

.github/workflows/coverage.yml

@@ -23,7 +23,7 @@ jobs:
         with:
           profile: minimal
           # nightly can be very volatile--pin this to a version we know works well...
-          toolchain: nightly-2022-06-11
+          toolchain: nightly-2022-08-11
           override: true
       - name: Cargo Test
         uses: actions-rs/cargo@v1

Cargo.toml

@@ -7,6 +7,7 @@ members = [
   "partiql-conformance-tests",
   "partiql-source-map",
   "partiql-eval",
+  "partiql-ir",
   "partiql-irgen",
   "partiql-parser",
   "partiql-rewriter",

partiql-ir/Cargo.toml

@@ -0,0 +1,22 @@
+[package]
+name = "partiql-ir"
+authors = ["PartiQL Team <partiql-team@amazon.com>"]
+description = "PartiQL Intermediate Representation"
+homepage = "https://github.com/partiql/partiql-lang-rust"
+repository = "https://github.com/partiql/partiql-lang-rust"
+license = "Apache-2.0"
+readme = "../README.md"
+keywords = ["sql", "parser", "query", "compilers", "interpreters"]
+categories = ["database", "compilers", "parser-implementations"]
+exclude = [
+  "**/.git/**",
+  "**/.github/**",
+  "**/.travis.yml",
+  "**/.appveyor.yml",
+]
+edition = "2021"
+version = "0.0.0"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

partiql-ir/LICENSE

@@ -0,0 +1 @@
+../LICENSE

partiql-ir/src/lib.rs

@@ -0,0 +1,5 @@
+#[cfg(test)]
+mod tests {
+    #[test]
+    fn todo() {}
+}